Hello,I discovered SAGA, an interesting free GIS, a few days ago and now, I would like to use it from within R 2.6.2 using the RSAGA package. I read the documentation for this package and thought that I understood it correctly for trying to call some of the SAGA modules. For getting the information on the usage of and arguments required by the SAGA command line "Import Binary Raw Data" module, I used:
> rsaga.get.usage("io_grid", 4)
SAGA CMD 2.0.3
library path: C:/Progra~1/saga_vc/modules
library name: io_grid
module name : Import Binary Raw Data
Usage: 4 [-GRID <str>] [-FILE_DATA <str>] [-NX <num>] [-NY <num>] [-DXY
<str>] [-XMIN <str>] [-YMIN <str>] [-UNIT <str>] [-ZFACTOR <str>]
[-NODATA <str>] [-DATA_OFFSET <num>] [-LINE_OFFSET <num>] [-LINE_ENDSET
<num>] [-DATA_TYPE <num>] [-BYTEORDER_BIG <num>] [-TOPDOWN <num>]
-GRID:<str> Grid Data Object (optional output) -FILE_DATA:<str> Raw Data File File path -NX:<num> Cell Count (X) Integer -NY:<num> Cell Count (Y) Integer -DXY:<str> Cell Size Floating point -XMIN:<str> Left Border (X) Floating point -YMIN:<str> Lower Border (Y) Floating point -UNIT:<str> Unit Name Text -ZFACTOR:<str> Z Multiplier Floating point -NODATA:<str> No Data Value Floating point -DATA_OFFSET:<num> Data Offset (Bytes) Integer -LINE_OFFSET:<num> Line Offset (Bytes) Integer -LINE_ENDSET:<num> Line Endset (Bytes) Integer -DATA_TYPE:<num> Data Type Choice Available Choices: [0] 1 Byte Integer (unsigned) [1] 1 Byte Integer (signed) [2] 2 Byte Integer (unsigned) [3] 2 Byte Integer (signed) [4] 4 Byte Integer (unsigned) [5] 4 Byte Integer (signed) [6] 4 Byte Floating Point [7] 8 Byte Floating Point -BYTEORDER_BIG:<num> Byte Order Choice Available Choices: [0] Little Endian (Intel) [1] Big Endian (Motorola) -TOPDOWN:<num> Line Order Choice Available Choices: [0] Bottom to Top [1] Top to BottomThen, I wrote the following command for importing a grid of binary raw data while specifying the parameters I usually enter under SAGA:
> rsaga.geoprocessor("io_grid", 4, list(GRID="199710.sgrd", FILE_DATA="C:/Documents and Settings/lescroel/Mes documents/pub/DATASETS/seaice/polar-stereo/nasateam/final-gsfc/south/monthly/nt_199710_f13_v01_s.bin", NX=316, NY=332, DXY=25, XMIN=-3950, DATA_OFFSET=300, TOPDOWN=1))
and I got: Le service Beep n'est pas lanc‚. Vous obtiendrez une aide suppl‚mentaire en entrant NET HELPMSG 3521.C:\Documents and Settings\lescroel\Bureau>C:\Progra~1\saga_vc\saga_cmd.exe io_grid 4 -silent -GRID 199710.sgrd -FILE_DATA C:\Documents and Settings\lescroel\Mes documents\pub\DATASETS\seaice\polar-stereo\nasateam\final-gsfc\south\monthly\nt_199710_f13_v01_s.bin -NX 316 -NY 332 -DXY 25 -XMIN -3950 -DATA_OFFSET 300 -TOPDOWN 1
SAGA CMD 2.0.3 library path: C:/Progra~1/saga_vc/modules library name: io_grid module name : Import Binary Raw Data author : (c) 2003 by O.Conrad error: executing module [Import Binary Raw Data]Usage: -silent [-GRID <str>] [-FILE_DATA <str>] [-NX <num>] [-NY <num>] [-DXY <str>] [-XMIN <str>] [-YMIN <str>] [-UNIT <str>] [-ZFACTOR <str>] [-NODATA <str>] [-DATA_OFFSET <num>] [-LINE_OFFSET <num>] [-LINE_ENDSET <num>] [-DATA_TYPE <num>] [-BYTEORDER_BIG <num>] [-TOPDOWN <num>]
-GRID:<str> Grid Data Object (optional output) -FILE_DATA:<str> Raw Data File File path -NX:<num> Cell Count (X) Integer -NY:<num> Cell Count (Y) Integer -DXY:<str> Cell Size Floating point -XMIN:<str> Left Border (X) Floating point -YMIN:<str> Lower Border (Y) Floating point -UNIT:<str> Unit Name Text -ZFACTOR:<str> Z Multiplier Floating point -NODATA:<str> No Data Value Floating point -DATA_OFFSET:<num> Data Offset (Bytes) Integer -LINE_OFFSET:<num> Line Offset (Bytes) Integer -LINE_ENDSET:<num> Line Endset (Bytes) Integer -DATA_TYPE:<num> Data Type Choice Available Choices: [0] 1 Byte Integer (unsigned) [1] 1 Byte Integer (signed) [2] 2 Byte Integer (unsigned) [3] 2 Byte Integer (signed) [4] 4 Byte Integer (unsigned) [5] 4 Byte Integer (signed) [6] 4 Byte Floating Point [7] 8 Byte Floating Point -BYTEORDER_BIG:<num> Byte Order Choice Available Choices: [0] Little Endian (Intel) [1] Big Endian (Motorola) -TOPDOWN:<num> Line Order Choice Available Choices: [0] Bottom to Top [1] Top to Bottom Unexpected parameter 'and'Could someone already using the RSAGA package provide some help in telling me what I did wrong?
Thanks for your help, Amélie ----------------------------------------------------------------------------------------------------------------------------------
*Amélie Lescroël* Postdoc - Seabird ecology Centre d’Etudes Biologiques de Chizé – 79360 Villiers en Bois – France *_http://www.cebc.cnrs.fr/Fidentite/lescroel/lescroel.htm_* *_http://www.cebc.cnrs.fr/ecomm/En_ecomm/En_index.html_* *_http://www.penguinscience.com_* <http://www.penguinscience.com/>-------------------------------------------------------------------------------------------------------------------------------- /"You have to have the debate and you have to have people thinking creatively, and then, ultimately, you'll come down to the truth"/
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